ScienceWiz - Alcohol Range Celsius Thermometer AWARD WINNING ScienceWiz curriculum is designed to teach kids science in an intuitive and natural progression Make precise temperature measurements with this set of thermometers from the award winning science experiment creator, Science Wiz Each package includes three 4" long glass thermometers with safe, red alcohol indicators in plastic storage tubes Measures a temperature range of 0 - 100 degrees Celsius Intended to be parts for use with science projects, science fairs, etc. and are provided with minimal to no operating instructions